The lack of security is a major shortcoming of the internet. Questions arise such as: Is this information correct? Where does it come from? Who does it come from? And can I trust it? By contrast, the blockchain has only one truth – which everyone involved has agreed on.
When sharing data between machines it is vital that the shared information is trustworthy and valid for everyone. In the blockchain each action is documented in a forgery-proof, clearly traceable way. An administrator cannot delete or modify content; the history of all transactions is also retained. Another advantage is that you do not need an intermediary, a mediator such as banks, stockbrokers or other institutions to safeguard processing.